Hi, > Does some simple word count example works on the cluster after the upgrade?
If not, maybe your job is pulling some dependency that’s causing this version conflict? Piotrek > On 21 Mar 2018, at 16:52, ashish pok <ashish...@yahoo.com> wrote: > > Hi Piotrek, > > Yes, this is a brand new Prod environment. 2.6 was in our lab. > > Thanks, > > -- Ashish > > On Wed, Mar 21, 2018 at 11:39 AM, Piotr Nowojski > <pi...@data-artisans.com> wrote: > Hi, > > Have you replaced all of your old Flink binaries with freshly downloaded > <https://flink.apache.org/downloads.html> Hadoop 2.7 versions? Are you sure > that something hasn't mix in the process? > > Does some simple word count example works on the cluster after the upgrade? > > Piotrek > >> On 21 Mar 2018, at 16:11, ashish pok <ashish...@yahoo.com >> <mailto:ashish...@yahoo.com>> wrote: >> >> Hi All, >> >> We ran into a roadblock in our new Hadoop environment, migrating from 2.6 to >> 2.7. It was supposed to be an easy lift to get a YARN session but doesnt >> seem like :) We definitely are using 2.7 binaries but it looks like there is >> a call here to a private methos which screams runtime incompatibility. >> >> Anyone has seen this and have pointers? >> >> Thanks, Ashish >> Exception in thread "main" java.lang.IllegalAccessError: tried to access >> method >> org.apache.hadoop.yarn.client.ConfiguredRMFailoverProxyProvider.getProxyInternal()Ljava/lang/Object; >> from class >> org.apache.hadoop.yarn.client.RequestHedgingRMFailoverProxyProvider <> >> at >> org.apache.hadoop.yarn.client.RequestHedgingRMFailoverProxyProvider.init(RequestHedgingRMFailoverProxyProvider.java:75) >> at >> org.apache.hadoop.yarn.client.RMProxy.createRMFailoverProxyProvider(RMProxy.java:163) >> at >> org.apache.hadoop.yarn.client.RMProxy.createRMProxy(RMProxy.java:94) >> at >> org.apache.hadoop.yarn.client.ClientRMProxy.createRMProxy(ClientRMProxy.java:72) >> at >> org.apache.hadoop.yarn.client.api.impl.YarnClientImpl.serviceStart(YarnClientImpl.java:187) >> at >> org.apache.hadoop.service.AbstractService.start(AbstractService.java:193) >> at >> org.apache.flink.yarn.AbstractYarnClusterDescriptor.getYarnClient(AbstractYarnClusterDescriptor.java:314) >> at >> org.apache.flink.yarn.AbstractYarnClusterDescriptor.deployInternal(AbstractYarnClusterDescriptor.java:417) >> at >> org.apache.flink.yarn.AbstractYarnClusterDescriptor.deploySessionCluster(AbstractYarnClusterDescriptor.java:367) >> at >> org.apache.flink.yarn.cli.FlinkYarnSessionCli.run(FlinkYarnSessionCli.java:679) >> at >> org.apache.flink.yarn.cli.FlinkYarnSessionCli$1.call(FlinkYarnSessionCli.java:514) >> at >> org.apache.flink.yarn.cli.FlinkYarnSessionCli$1.call(FlinkYarnSessionCli.java:511) >> at java.security.AccessController.doPrivileged(Native Method) >> at javax.security.auth.Subject.doAs(Subject.java:422) >> at >> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1698) >> at >> org.apache.flink.runtime.security.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41) >> at >> org.apache.flink.yarn.cli.FlinkYarnSessionCli.main(FlinkYarnSessionCli.java:511) >> >